package com.nongxiange.chapter2.util;

/**
 * 转型操作工具集
 */
public final class CastUtil {

    public static  String castString(Object obj) {
        return CastUtil.castString(obj,"");
    }
    public static  String castString(Object obj,String defaultValue) {
        return obj != null ? String.valueOf(obj) : defaultValue;
    }


    public static  double castDouble(Object obj) {
        return CastUtil.castDouble(obj,0);
    }
    public static double castDouble(Object obj,double defaultValue) {
       double doubleValue = defaultValue;
        if(obj != null) {
            String strValue = castString(obj);
            if(StringUtil.isNotEmpty(strValue)) {
                try{
                    doubleValue = Double.parseDouble(strValue);
                }catch (NumberFormatException e) {
                    doubleValue = defaultValue;
                }
            }
        }
        return  doubleValue;
    }

    public static long castLong(Object obj) {
        return CastUtil.castLong(obj,0);
    }
    public static long castLong(Object obj,long defaultValue) {
        long longValue = defaultValue;
        if(obj != null) {
            String strValue = castString(obj);
            if(StringUtil.isNotEmpty(strValue)) {
                try{
                    longValue = Long.parseLong(strValue);
                }catch (NumberFormatException e) {
                    longValue = defaultValue;
                }
            }
        }
        return  longValue;
    }


    public static int castInt(Object obj) {
        return CastUtil.castInt(obj,0);
    }
    public static int castInt(Object obj,int defaultValue) {
        int intValue = defaultValue;
        if(obj != null) {
            String strValue = castString(obj);
            if(StringUtil.isNotEmpty(strValue)) {
                try{
                    intValue = Integer.parseInt(strValue);
                }catch (NumberFormatException e) {
                    intValue = defaultValue;
                }
            }
        }
        return  intValue;
    }

    public static boolean castBoolean(Object obj){
        return CastUtil.castBoolean(obj,false);
    }
    public static boolean castBoolean(Object obj,boolean defaultValue) {
        boolean booleanValue = defaultValue;
        if(obj != null) {
            booleanValue = Boolean.parseBoolean(castString(obj));
        }
        return  booleanValue;
    }
}
